# JSON-RPC Server

Because GateChain EVM is basically compatible with Ethereum, much of the content in this document comes from the contribution of Ethereum EVM documents.

# JSON-RPC Methods

Method	Namespace	Implemented
`web3_clientVersion`	Web3	✔
`web3_sha3`	Web3	✔
`net_version`	Net	✔
`eth_protocolVersion`	Eth	✔
`eth_syncing`	Eth	✔
`eth_gasPrice`	Eth	✔
`eth_accounts`	Eth	✔
`eth_blockNumber`	Eth	✔
`eth_getBalance`	Eth	✔
`eth_getStorageAt`	Eth	✔
`eth_getTransactionCount`	Eth	✔
`eth_getBlockTransactionCountByNumber`	Eth	✔
`eth_getBlockTransactionCountByHash`	Eth	✔
`eth_getCode`	Eth	✔
`eth_sign`	Eth	✔
`eth_sendTransaction`	Eth	✔
`eth_sendRawTransaction`	Eth	✔
`eth_call`	Eth	✔
`eth_estimateGas`	Eth	✔
`eth_getBlockByNumber`	Eth	✔
`eth_getBlockByHash`	Eth	✔
`eth_getTransactionByHash`	Eth	✔
`eth_getTransactionByBlockHashAndIndex`	Eth	✔
`eth_getTransactionReceipt`	Eth	✔

# web3_clientVersion

Returns the current client version.

# Parameters

none

# Returns

String - The current client version

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":67}'

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "gate enhanced-1.0.5-135-gf00ae80"
}

# web3_sha3

Returns Keccak-256 (not the standardized SHA3-256) of the given data.

# Parameters

DATA - the data to convert into a SHA3 hash

params: [
  "0x68656c6c6f20776f726c64"
]

# Returns

DATA - The SHA3 result of the given string.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"web3_sha3","params":["0x68656c6c6f20776f726c64"],"id":64}'

// Result
{
  "id":64,
  "jsonrpc": "2.0",
  "result": "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad"
}

# net_version

Returns the current network id.

# Parameters

none

# Returns

String - The current network id.

"86":   Mainnet

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"net_version","params":[],"id":67}'

// Result
{
  "id":67,
  "jsonrpc": "2.0",
  "result": "86"
}

# eth_protocolVersion

Returns the current ethereum protocol version.

# Parameters

none

# Returns

String - The current ethereum protocol version

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_protocolVersion","params":[],"id":67}'

// Result
{
  "id":67,
  "jsonrpc": "2.0",
  "result": "0x41"
}

# eth_syncing

Returns an object with data about the sync status or false.

# Parameters

none

# Returns

Object|Boolean, An object with sync status data or FALSE, when not syncing:

startingBlock: QUANTITY - The block at which the import started (will only be reset, after the sync reached his head)
currentBlock: QUANTITY - The current block, same as eth_blockNumber
highestBlock: QUANTITY - The estimated highest block

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}'

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "currentBlock": 106699
    }
}

// Or when not syncing
{
  "id":1,
  "jsonrpc": "2.0",
  "result": false
}

# eth_gasPrice

Returns the current price per gas in wei.

# Parameters

none

# Returns

QUANTITY - integer of the current gas price in wei.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_gasPrice","params":[],"id":73}'

// Result
{
  "id":73,
  "jsonrpc": "2.0",
  "result": "0x09184e72a000" // 10000000000000
}

# eth_accounts

Returns a list of addresses owned by client.

# Parameters

none

# Returns

Array of DATA, 20 Bytes - addresses owned by the client.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_accounts","params":[],"id":1}'

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": [
        "0xd9a549bcca822b696718802ec4aad4e1acc24367",
        "0xcfe9c51a8039e74b0cce28642be0504fc898094a",
        "0xa1968292d334ef64b56b01862d6ac1b2a8548b91"
    ]
}

# eth_blockNumber

Returns the number of most recent block.

# Parameters

none

# Returns

QUANTITY - integer of the current block number the client is on.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":83}'

// Result
{
  "id":83,
  "jsonrpc": "2.0",
  "result": "0x1a0e1" // 106721
}

# eth_getBalance

Returns the balance of the account of given address.

# Parameters

DATA, 20 Bytes - address to check for balance.
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending"
params: [
   '0x407d73d8a49eeb85d32cf465507dd71d507100c1',
   'latest'
]

# Returns

QUANTITY - integer of the current balance in wei.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0x407d73d8a49eeb85d32cf465507dd71d507100c1", "latest"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x6c3a050b1aedb4000" // 124776820000000000000
}

# eth_getStorageAt

Returns the value from a storage position at a given address.

# Parameters

DATA, 20 Bytes - address of the storage.
QUANTITY - integer of the position in the storage.
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending"

# Returns

DATA - the value at this storage position.

# Example

Calculating the correct position depends on the storage to retrieve. Consider the following contract deployed at 0x391694e7e0b0cce554cb130d723a9d27458f9298 by address 0x295a70b2de5e3953354a6a8344e616ed314d7251.

contract Storage {
    uint pos0;
    mapping(address => uint) pos1;

    function Storage() {
        pos0 = 1234;
        pos1[msg.sender] = 5678;
    }
}

Retrieving the value of pos0 is straight forward:

// Request
curl -X POST --data '{"jsonrpc":"2.0", "method": "eth_getStorageAt", "params": ["0x295a70b2de5e3953354a6a8344e616ed314d7251", "0x0", "latest"], "id": 1}' localhost:8545

// Result
{"jsonrpc":"2.0","id":1,"result":"0x00000000000000000000000000000000000000000000000000000000000004d2"}

Retrieving an element of the map is harder. The position of an element in the map is calculated with:

keccack(LeftPad32(key, 0), LeftPad32(map position, 0))

This means to retrieve the storage on pos1[“0x391694e7e0b0cce554cb130d723a9d27458f9298”] we need to calculate the position with:

keccak(decodeHex("000000000000000000000000391694e7e0b0cce554cb130d723a9d27458f9298" + "0000000000000000000000000000000000000000000000000000000000000001"))

The geth console which comes with the web3 library can be used to make the calculation:

> var key = "000000000000000000000000391694e7e0b0cce554cb130d723a9d27458f9298" + "0000000000000000000000000000000000000000000000000000000000000001"
undefined
> web3.sha3(key, {"encoding": "hex"})
"0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9"

Now to fetch the storage:

// Request
curl -X POST --data '{"jsonrpc":"2.0", "method": "eth_getStorageAt", "params": ["0x295a70b2de5e3953354a6a8344e616ed314d7251", "0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9", "latest"], "id": 1}' localhost:8545

// Result
{"jsonrpc":"2.0","id":1,"result":"0x000000000000000000000000000000000000000000000000000000000000162e"}

# eth_getTransactionCount

Returns the number of transactions sent from an address.

# Parameters

DATA, 20 Bytes - address.
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending"
params: [
   '0x407d73d8a49eeb85d32cf465507dd71d507100c1',
   'latest' // state at the latest block
]

# Returns

QUANTITY - integer of the number of transactions send from this address.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0x407d73d8a49eeb85d32cf465507dd71d507100c1","latest"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x1" // 1
}

# eth_getBlockTransactionCountByNumber

Returns the number of transactions in a block matching the given block number.

# Parameters

QUANTITY|TAG - integer of a block number, or the string "earliest", "latest" or "pending"
params: [
   '0xe8', // 232
]

# Returns

QUANTITY - integer of the number of transactions in this block.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockTransactionCountByNumber","params":["0xe8"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xa" // 10
}

# eth_getBlockTransactionCountByHash

Returns the number of transactions in a block from a block matching the given block hash.

# Parameters

DATA, 32 Bytes - hash of a block
params: [
   '0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238'
]

# Returns

QUANTITY - integer of the number of transactions in this block.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockTransactionCountByHash","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xb" // 11
}

# eth_getCode

Returns code at a given address.

# Parameters

DATA, 20 Bytes - address
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending"
params: [
   '0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b',
   '0x2'  // 2
]

# Returns

DATA - the code from the given address.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getCode","params":["0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b", "0x2"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x600160008035811a818181146012578301005b601b6001356025565b8060005260206000f25b600060078202905091905056"
}

# eth_sign

The sign method calculates an Ethereum specific signature with: sign(keccak256("\x19Ethereum Signed Message:\n" + len(message) + message))).

By adding a prefix to the message makes the calculated signature recognisable as an Ethereum specific signature. This prevents misuse where a malicious DApp can sign arbitrary data (e.g. transaction) and use the signature to impersonate the victim.

Note the address to sign with must be unlocked.

# Parameters

account, message

DATA, 20 Bytes - address
DATA, N Bytes - message to sign

# Returns

DATA: Signature

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_sign","params":["0x9b2055d370f73ec7d8a03e965129118dc8f5bf83", "0xdeadbeaf"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xa3f20717a250c2b0b729b7e5becbff67fdaef7e0699da4de7ca5895b02a170a12d887fd3b17bfdce3481f10bea41f45ba9f709d39ce8325427b57afcfc994cee1b"
}

# eth_sendTransaction

Creates new message call transaction or a contract creation, if the data field contains code.

# Parameters

Object - The transaction object
	from: DATA, 20 Bytes - The address the transaction is send from.
	to: DATA, 20 Bytes - (optional when creating new contract) The address the transaction is directed to.
	gas: QUANTITY - (optional, default: 90000) Integer of the gas provided for the transaction execution. It will return unused gas.
	gasPrice: QUANTITY - (optional, default: To-Be-Determined) Integer of the gasPrice used for each paid gas
	value: QUANTITY - (optional) Integer of the value sent with this transaction
	data: DATA - The compiled code of a contract OR the hash of the invoked method signature and encoded parameters. For details see Ethereum Contract ABI
	nonce: QUANTITY - (optional) Integer of a nonce. This allows to overwrite your own pending transactions that use the same nonce.
params: [{
  "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
  "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
  "gas": "0x76c0", // 30400
  "gasPrice": "0x9184e72a000", // 10000000000000
  "value": "0x9184e72a", // 2441406250
  "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
}]

# Returns

DATA, 32 Bytes - the transaction hash, or the zero hash if the transaction is not yet available.
Use eth_getTransactionReceipt to get the contract address, after the transaction was mined, when you created a contract.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_sendTransaction","params":[{see above}],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331"
}

# eth_sendRawTransaction

Creates new message call transaction or a contract creation for signed transactions.

# Parameters

DATA, The signed transaction data.
params: ["0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"]

# Returns

DATA, 32 Bytes - the transaction hash, or the zero hash if the transaction is not yet available.
Use eth_getTransactionReceipt to get the contract address, after the transaction was mined, when you created a contract.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_sendRawTransaction","params":[{see above}],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331"
}

# eth_call

Executes a new message call immediately without creating a transaction on the block chain.

# Parameters

1.Object - The transaction call object
	from: DATA, 20 Bytes - (optional) The address the transaction is sent from.
	to: DATA, 20 Bytes - The address the transaction is directed to.
	gas: QUANTITY - (optional) Integer of the gas provided for the transaction execution. eth_call consumes zero gas, but this parameter may be 	needed by some executions.
	gasPrice: QUANTITY - (optional) Integer of the gasPrice used for each paid gas
	value: QUANTITY - (optional) Integer of the value sent with this transaction
	data: DATA - (optional) Hash of the method signature and encoded parameters. For details see Ethereum Contract ABI in the Solidity 	documentation
2.QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending"

# Returns

DATA - the return value of executed contract.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_call","params":[{see above}],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x"
}

# eth_estimateGas

Generates and returns an estimate of how much gas is necessary to allow the transaction to complete. The transaction will not be added to the blockchain.

Note that the estimate may be significantly more than the amount of gas actually used by the transaction, for a variety of reasons including EVM mechanics and node performance.

# Parameters

See eth_call parameters, expect that all properties are optional. If no gas limit is specified geth uses the block gas limit from the pending block as an upper bound. As a result the returned estimate might not be enough to executed the call/transaction when the amount of gas is higher than the pending block gas limit.

# Returns

QUANTITY - the amount of gas used.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_estimateGas","params":[{see above}],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x5208" // 21000
}

# eth_getBlockByHash

Returns information about a block by hash.

# Parameters

DATA, 32 Bytes - Hash of a block.
Boolean - If true it returns the full transaction objects, if false only the hashes of the transactions.

params: [
   '0xdc0818cf78f21a8e70579cb46a43643f78291264dda342ae31049421c82d21ae',
   false
]

# Returns

Object - A block object, or null when no block was found:

number: QUANTITY - the block number. null when its pending block.
hash: DATA, 32 Bytes - hash of the block. null when its pending block.
parentHash: DATA, 32 Bytes - hash of the parent block.
nonce: DATA, 8 Bytes - hash of the generated proof-of-work. null when its pending block.
sha3Uncles: DATA, 32 Bytes - SHA3 of the uncles data in the block.
logsBloom: DATA, 256 Bytes - the bloom filter for the logs of the block. null when its pending block.
transactionsRoot: DATA, 32 Bytes - the root of the transaction trie of the block.
stateRoot: DATA, 32 Bytes - the root of the final state trie of the block.
receiptsRoot: DATA, 32 Bytes - the root of the receipts trie of the block.
miner: DATA, 20 Bytes - the address of the beneficiary to whom the mining rewards were given.
difficulty: QUANTITY - integer of the difficulty for this block.
totalDifficulty: QUANTITY - integer of the total difficulty of the chain until this block.
extraData: DATA - the “extra data” field of this block.
size: QUANTITY - integer the size of this block in bytes.
gasLimit: QUANTITY - the maximum gas allowed in this block.
gasUsed: QUANTITY - the total used gas by all transactions in this block.
timestamp: QUANTITY - the unix timestamp for when the block was collated.
transactions: Array - Array of transaction objects, or 32 Bytes transaction hashes depending on the last given parameter.
uncles: Array - Array of uncle hashes.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByHash","params":["0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331", true],"id":1}'

// Result
{
"id":1,
"jsonrpc":"2.0",
"result": {
    "number": "0x1b4", // 436
    "hash": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331",
    "parentHash": "0x9646252be9520f6e71339a8df9c55e4d7619deeb018d2a3f2d21fc165dde5eb5",
    "nonce": "0xe04d296d2460cfb8472af2c5fd05b5a214109c25688d3704aed5484f9a7792f2",
    "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
    "logsBloom": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331",
    "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "stateRoot": "0xd5855eb08b3387c0af375e9cdb6acfc05eb8f519e419b874b6ff2ffda7ed1dff",
    "miner": "0x4e65fda2159562a496f9f3522f89122a3088497a",
    "difficulty": "0x027f07", // 163591
    "totalDifficulty":  "0x027f07", // 163591
    "extraData": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "size":  "0x027f07", // 163591
    "gasLimit": "0x9f759", // 653145
    "gasUsed": "0x9f759", // 653145
    "timestamp": "0x54e34e8e" // 1424182926
    "transactions": [{...},{ ... }] 
    "uncles": ["0x1606e5...", "0xd5145a9..."]
  }
}

# eth_getBlockByNumber

Returns information about a block by block number.

# Parameters

QUANTITY|TAG - integer of a block number, or the string "earliest", "latest" or "pending", as in the default block parameter.
Boolean - If true it returns the full transaction objects, if false only the hashes of the transactions.

params: [
   '0x1b4', // 436
   true
]

# Returns

See eth_getBlockByHash

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x1b4", true],"id":1}'

// Result
See eth_getBlockByHash

# eth_getTransactionByHash

Returns the information about a transaction requested by transaction hash.

# Parameters

DATA, 32 Bytes - hash of a transaction
params: [
   "0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"
]

# Returns

Object - A transaction object, or null when no transaction was found:

	hash: DATA, 32 Bytes - hash of the transaction.
	nonce: QUANTITY - the number of transactions made by the sender prior to this one.
	blockHash: DATA, 32 Bytes - hash of the block where this transaction was in. null when its pending.
	blockNumber: QUANTITY - block number where this transaction was in. null when its pending.
	transactionIndex: QUANTITY - integer of the transactions index position in the block. null when its pending.
	from: DATA, 20 Bytes - address of the sender.
	to: DATA, 20 Bytes - address of the receiver. null when its a contract creation transaction.
	value: QUANTITY - value transferred in Wei.
	gasPrice: QUANTITY - gas price provided by the sender in Wei.
	gas: QUANTITY - gas provided by the sender.
	input: DATA - the data send along with the transaction.

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":1}'
 
// Result
{
"id":1,
"jsonrpc":"2.0",
"result": {
    "hash":"0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b",
    "nonce":"0x",
    "blockHash": "0xbeab0aa2411b7ab17f30a99d3cb9c6ef2fc5426d6ad6fd9e2a26a6aed1d1055b",
    "blockNumber": "0x15df", // 5599
    "transactionIndex":  "0x1", // 1
    "from":"0x407d73d8a49eeb85d32cf465507dd71d507100c1",
    "to":"0x85h43d8a49eeb85d32cf465507dd71d507100c1",
    "value":"0x7f110", // 520464
    "gas": "0x7f110", // 520464
    "gasPrice":"0x09184e72a000",
    "input":"0x603880600c6000396000f300603880600c6000396000f3603880600c6000396000f360",
  }
}

# eth_getTransactionByBlockHashAndIndex

Returns information about a transaction by block hash and transaction index position.

# Parameters

DATA, 32 Bytes - hash of a block.
QUANTITY - integer of the transaction index position.
params: [
   '0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331',
   '0x0' // 0
]

# Returns

See eth_getTransactionByHash

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByBlockHashAndIndex","params":["0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b", "0x0"],"id":1}'

// Result
see eth_getTransactionByHash

# eth_getTransactionReceipt

Returns the receipt of a transaction by transaction hash.

Note That the receipt is not available for pending transactions.

# Parameters

DATA, 32 Bytes - hash of a transaction
params: [
   '0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238',
]

# Returns

Object - A transaction receipt object, or null when no receipt was found:

	transactionHash : DATA, 32 Bytes - hash of the transaction.
	transactionIndex: QUANTITY - integer of the transactions index position in the block.
	blockHash: DATA, 32 Bytes - hash of the block where this transaction was in.
	blockNumber: QUANTITY - block number where this transaction was in.
	from: DATA, 20 Bytes - address of the sender.
	to: DATA, 20 Bytes - address of the receiver. null when its a contract creation transaction.
	cumulativeGasUsed : QUANTITY  - The total amount of gas used when this transaction was executed in the block.
	gasUsed : QUANTITY  - The amount of gas used by this specific transaction alone.
	contractAddress : DATA, 20 Bytes - The contract address created, if the transaction was a contract creation, otherwise null.
	logs: Array - Array of log objects, which this transaction generated.
	logsBloom: DATA, 256 Bytes - Bloom filter for light clients to quickly retrieve related logs.
It also returns either :

	root : DATA 32 bytes of post-transaction stateroot (pre Byzantium)
	status: QUANTITY either 1 (success) or 0 (failure)

# Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionReceipt","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":1}'

// Result
{
"id":1,
"jsonrpc":"2.0",
"result": {
     transactionHash: '0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238',
     transactionIndex:  '0x1', // 1
     blockNumber: '0xb', // 11
     blockHash: '0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b',
     cumulativeGasUsed: '0x33bc', // 13244
     gasUsed: '0x4dc', // 1244
     contractAddress: '0xb60e8dd61c5d32be8058bb8eb970870f07233155', // or null, if none was created
     logs: [{
         // logs as returned by getFilterLogs, etc.
     }, ...],
     logsBloom: "0x00...0", // 256 byte bloom filter
     status: '0x1'
  }
}

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